What is GHSA-fvc9-q887-5p2h?

GHSA-fvc9-q887-5p2h is a security advisory published by GitHub Security Advisories with High severity. Concurrent execution using shared resource with improper synchronization ('race condition') in ...

Which CVE IDs does GHSA-fvc9-q887-5p2h cover?

GHSA-fvc9-q887-5p2h covers the following CVE IDs: CVE-2026-23666. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-fvc9-q887-5p2h?

GHSA-fvc9-q887-5p2h has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-fvc9-q887-5p2hHighCVSS 7.5

Concurrent execution using shared resource with improper synchronization ('race condition') in ...

Vendor

GitHub Security Advisories

Published

April 14, 2026

Last Modified

June 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-23666 →

📋 Description

Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.

🔗 References (6)

https://nvd.nist.gov/vuln/detail/CVE-2026-23666
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23666
https://access.redhat.com/security/cve/CVE-2026-23666
https://bugzilla.redhat.com/show_bug.cgi?id=2458271
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23666.json
https://github.com/advisories/GHSA-fvc9-q887-5p2h